Istituto di Cristallografia - CNR

Measurement of the $^72mathrmGe(n,ensuremath?)$ cross section over a wide neutron energy range at the CERN n_TOF facility

The $^72$Ge(n,?) cross section was measured for neutron energies up to 300keV at the neutron time-of-flight facility n_TOF (CERN), Geneva, for the first time covering energies relevant to heavy-element synthesis in stars. The measurement was performed at the high-resolution beamline EAR-1, using an isotopically enriched 72GeO2 sample. The prompt capture ? rays were detected with four liquid scintillation detectors, optimized for low neutron sensitivity. We determined resonance capture kernels up to a neutron energy of 43keV, and averaged cross sections from 43 to 300keV. Maxwellian-averaged cross section values were calculated from kT=5 to 100keV, with uncertainties between 3.2% and 7.1%. The new results significantly reduce uncertainties of abundances produced in the slow neutron capture process in massive stars.

Physical review. C. Nuclear physics (Print)
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Dietz, M. and Lederer-Woods, C. and Tattersall, A. and Battino, U. and Gunsing, F. and Heinitz, S. and Krtiifmmode checkcelse vcfika, M. and Lerendegui-Marco, J. and Reifarth, R. and Valenta, S. and Aberle, O. and Amaducci, S. and Andrzejewski, J. and Audouin, L. and Bacak, M. and Balibrea, J. and Barbagallo, M. and Beifmmode checkcelse vcfiv'aifmmode checkrelse vrfi, F. and Berthoumieux, E. and Billowes, J. and Bosnar, D. and Brown, A. and Caama~no, M. and Calvi~no, F. and Calviani, M. and Cano-Ott, D. and Cardella, R. and Casanovas, A. and Cerutti, F. and Chen, Y. H. and Chiaveri, E. and Colonna, N. and Cort'es, G. and Cort'es-Giraldo, M. A. and Cosentino, L. and Damone, L. A. and Diakaki, M. and Domingo-Pardo, C. and Dressler, R. and Dupont, E. and Dur'an, I. and Fern'andez-Dom'inguez, B. and Ferrari, A. and Ferreira, P. and Finocchiaro, P. and Furman, V. and G"obel, K. and Garc'ia, A. R. and Gawlik, A. and Gilardoni, S. and Glodariu, T. and Gonifmmode mbox?else ?fialves, I. F. and Gonz'alez-Romero, E. and Griesmayer, E. and Guerrero, C. and Harada, H. and Heyse, J. and Jenkins, D. G. and Jericha, E. and K"appeler, F. and Kadi, Y. and Kahl, D. and Kalamara, A. and Kavrigin, P. and Kimura, A. and Kivel, N. and Kokkoris, M. and Kurtulgil, D. and Leal-Cidoncha, E. and Leeb, H. and Lo Meo, S. and Lonsdale, S. J. and Macina, D. and Manna, A. and Marganiec, J. and Mart'inez, T. and Masi, A. and Massimi, C. and Mastinu, P. and Mastromarco, M. and Maugeri, E. A. and Mazzone, A. and Mendoza, E. and Mengoni, A. and Milazzo, P. M. and Mingrone, F. and Musumarra, A. and Negret, A. and Nolte, R. and Oprea, A. and Patronis, N. and Pavlik, A. and Perkowski, J. and Porras, I. and Praena, J. and Quesada, J. M. and Radeck, D. and Rauscher, T. and Rubbia, C. and Ryan, J. A. and Sabat'e-Gilarte, M. and Saxena, A. and Schillebeeckx, P. and Schumann, D. and Sedyshev, P. and Smith, A. G. and Sosnin, N. V. and Stamatopoulos, A. and Tagliente, G. and Tain, J. L. and Tarife~no-Saldivia, A. and Tassan-Got, L. and Vannini, G. and Variale, V. and Vaz, P. and Ventura, A. and Vlachoudis, V. and Vlastou, R. and Wallner, A. and Warren, S. and Weiss, C. and Woods, P. J. and Wright, T. and ifmmode checkZelse vZfiugec, P.
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